A Simplified 4-DOF Dynamic Model of a Series-Parallel Hybrid Electric Vehicle-Reference-Cited by-同舟云学术

A Simplified 4-DOF Dynamic Model of a Series-Parallel Hybrid Electric Vehicle

Published:2024-08-28 Issue:9 Volume:15 Page:390
ISSN:2032-6653
Container-title:World Electric Vehicle Journal
language:en
Short-container-title:WEVJ

Author:

Dai Lihong¹²,Hu Peng²,Wang Tianyou¹,Bian Guosheng³,Liu Haoye¹^ORCID

Affiliation:

1. State Key Laboratory of Engines, Tianjin University, Tianjin 300350, China

2. Chery Jetour Automobile Co., Ltd., Wuhu 241002, China

3. KUNTYE Vehicle System Co., Ltd., Changzhou 213011, China

Abstract

To research the dynamic response of a new type of dedicated transmission for a hybrid electric vehicle, a detailed dynamics model should be built. However, a model with too many degrees of freedom has a negative effect on controller design, which means the detailed model should be simplified. In this paper, two dynamic models are established. One is an original and detailed powertrain dynamics model (ODPDM), which can capture the transient response, and it is validated that the ODPDM can be used to accurately describe the real vehicle in some specific operating conditions. The other is a simplified torsional vibration dynamics model to study the torsional vibration characteristics of the hybrid electric vehicle. Compared with the full-order model, which is based on the ODPDM, the simplified model has a very similar vibration in low frequency. This study provides a basis for further vibration control of the hybrid powertrain during the process of a driving-mode switch.

Publisher

MDPI AG

Link

https://www.mdpi.com/2032-6653/15/9/390/pdf

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